Blender base



FIG. 1 is a right front perspective view of a blender base showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a top plan view thereof.

Portions forming the underside of the article not shown in the drawings form no part of the claimed design.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a blender base, as shown and described. 